Williams is an unemployed voiceover actor going through a messy divorce. When his wife gets custody, the distraught father decides to dress up as a woman and become a nanny to his own children. He also has to deal with the old flame who re-enters his ex-wife's life. Williams schtick extraordinaire with more than a little sugary sentimentality. Based on the British children's book Madame Doubtfire by Anne Fine.